REPORT PROD_LIST_CREATED_BY_CATEGORY.PARAMETERS: id TYPE COMM_CAtegory-category_id OBLIGATORY DEFAULT 'MAT_JERR'.START-OF-SELECTION.DATA: lv_guid TYPE comm_category-category_guid,lt_guid TYPE STANDARD TABLE OF COMM_PRODUCT-product_guid,lt_prod TYPE STANDARD TABLE OF comm_product.SELECT SINGLE category_guid FROM comm_category INTO lv_guid WHERE category_id = id.IF sy-subrc <> 0.WRITE: / 'category id not valid.'.RETURN.ENDIF.SELECT product_guid INTO TABLE lt_guid FROM COMM_PRPRDCATR WHERE category_guid = lv_guid.IF sy-subrc <> 0.WRITE: / 'no product exists which are created based on current category.'.RETURN.ENDIF.SELECT * INTO TABLE lt_prod FROM COmm_product FOR ALL ENTRIES IN lt_guid WHERE product_guid = lt_guid-table_line.SORT lt_prod BY product_id.LOOP AT lt_prod ASSIGNING FIELD-SYMBOL(<prod>).WRITE: / <prod>-product_id COLOR COL_NEGATIVE, 'Created on: ' , <prod>-valid_from.ENDLOOP.